Karan Johar hosted a party for singing sensation Katy Perry in Mumbai recently.
We saw the inside pictures, and it sure looked rocking!
Here's looking at the stars arriving for the big bash.
Alia Bhatt.
Katy Perry.
Malaika Arora.
Arjun Kapoor.
Amrita Arora.
Jacqueline Fernandez.
Anushka Sharma.
Kajol.
Aditi Rao Hydari.
Mira Rajput and Shahid Kapoor.
Abhishek and Aishwarya Rai Bachchan.
Sonali Bendre with Goldie Behl.
Gauri Khan.
Sonakshi Sinha.
Ananya Panday with mother Bhavana.
Angad Bedi and Neha Dhupia.
Seema Khan.
Neelam.
Mini Mathur.
The Ranjan sisters -- Anushka and Akansha.
Kunal Kemmu.
Vijay Deverakonda.
Rana Daggubati and Pooja Shetty.
Aditya Roy Kapur.
Punit Malhotra.
Dinesh Vijan with wife Pramita Tanwar.
Hardik Pandya.
Siddhant Chaturvedi.
Shabina Khan.
Aayush Sharma.
Shashank Khaitan.
Adar Poonawala with wife Natasha.
Sandeep Khosla.
Photographs: Pradeep Bandekar